Foto4easy E27 Four Socket Multi-holder Studio Tricolor Light Bulb Lamp Head 4-In-1 Four-Holder Tricolor Light is applicable for shooting in studios or workshops The ideal continuous lighting source. The safe and reliable light is easy to operate. Before installing or removing bulbs, unplug the power cable and wait for the bulbs to cool down. Bulbs get hot after lighting for a period. Do not touch. Do not put flammable objects beside them either This device is not water-proof. Do not use it in rain or fog.